反应条件
1: 73 percent / 1-hydroxybenzotriazole, dicyclohexylcarbodiimide / tetrahydrofuran / 0 °C 2: 74 percent / PPh3, diethylazodicarboxylate / tetrahydrofuran / 0 °C 3: 82 percent / CuBr*Me2S / tetrahydrofuran; toluene / 16 h / -20 °C 4: 1.) CF3CO2H; 2.) 6N HCl View Scheme
参考文献
Tetrahedron Letters, , vol. 37, # 21 p. 3761 - 3764